Liquid supply nozzle



July 13, 1937. w. P. CAMERON 2,087,139

LIQUID SUPPLY NOZZLE Filed July 22, 1936 I 11L f- Patented July 13, 1937 2,087,139

UNITED STATES PATENT OFFICE LIQUID SUPPLY NOZZLE William P. Cameron, Philadelphia, Pa. Application July 22, 1936, Serial lilo. 91,957 s ciaims. (01. 221-80) Thisinvention relates primarily to attachments tuse angle materially exceeding 90 degrees, and for liquid-supply nozzles of the type, for example, the opposite side 9 of said recess adjacent the employed on distributing pumps of gasoline discharge end of said tip should meet the inner service stations. surface portionjll thereof at an angle not ex- The principal object of the invention is to proceeding 90 degrees, and preferably this angle 5 vide an attachment for liquid-supply nozzles of should be substantially less than 90 degrees, as the character set forth affording said nozzles disillustrated. tlnctly improved anti-drip characteristics. The auxiliary tip or attachment 5 is preferably A o her object of the inventionis to provide formed of a resilient insulating material, such as m an antl-drip-device of the stated character that a synthetic rubber composition of the character, 10

can be readily applied to the existing discharge for example, of Duprene, hich has all of the nozzles. attributes-of rubber but is unaffected by contact A further object of the invention is to provide with solvents; ot Compositions materials a device of the character set forth of resilient may, however,.be employed. The tip orattachmaterial having a substantially smooth surface m nt 5 is, as h w i the wing, arranged to which will function as a bufler and prevent fit snugly over the discharge end of the tubular scratching or marring of the paint or enamel nozzle 4, and an annular surface or shoulder ll finish on the body of an automobile or other suris formed internally of said tip for engagement by I face. the discharge end edge of said nozzle. The width These and other objects of the invention and of the annular surface or shoulder H is sub- 20 the features and details of construction thereof stantially equal to the thickness of the walls of are set forth hereinafter and shown in the accomthe nozzle 4, so that the inner surface of the panying drawing, in which: latter and the inner surface portion 8 of the tip Figure 1 is a view in side elevation of a nozzle 5 reside in substantially the same plane. including the anti-drip device, and It is desirable that the tip or attachment 5 be 25 Fig. 2 is an enlarged fragmentary view in secsecured to the tubular nozzle 4 by means of a tion on line 2'-2, Fig. 1. suitable adhesive, such as shellac, glue or the like, With reference to Figure 1 of the drawing, the and for the purpose of protecting said tip 5 nozzle therein illustrated, with the exception of against damage and wear, a sleeve or the like I! the tip attachment hereinafter described, is of is preferably secured in a similar manner on the 3 the conventional type comprising a hand-grip outer surface of the tip. As shown in Fig. 2 portlon'l, a control valve 2 which is actuated in of the drawing, the inner end portion of the well known manner through the medium of a sleeve i2 is curved inwardly, as indicated at l3, lever 3, and a tubular discharge portion 4. In so that the edge thereof engages or contacts the accordance with the usual practice, the portion} adjacent outer surface of the nozzle 4 to effec- 35 extends at an angle to the portion l to facilitate tively ground through the latter any static electhe manipulation thereof in supplying gasoline tricity that may have been generated in the to the motor vehicle and also in some dereceptacle or tank being filled from said nozzle, gree to aid in avoiding drip from the end of the and the outer end portion of said sleeve i2 is 40 nozzle when the latter is withdrawn from the preferably curved a slight distance outwardly, 4o tank of the motor vehicle. with a nozzle of this as indicated at H, to conform to the curvature character, it is possible to avoid drip only at the of the underlying surface of the tip or attachexpense of a considerable delay to permit all of ment 5, so that any tendency for the outer edge the gasoline left in the outer portion 4 of the of the sleeve to cut into or damage said tip is nozzle to escape after the valve 2 has been closed. substantially eliminated. 45

. For th purpose of substantially limin ti By forming-the tip or attachment 5 of resilient drip, the present invention contemplates an auxin material, S as Synthetic rubber compflsition iary tip or attachment 5 provided with a suitably or" the character, for example, of Duprene, disiormed internal liquid-retaining recess 6 adjatinctly novel bufiing characteristics are afforded 5 cent its discharge end, which recess is continuous said attachment, which effectively eliminates the o a and completely embraces the discharge opening. possibility of damaging, scratching or otherwise The inner side I of the recess 6 which lies remote marring the painted or enameled surfaces surto the discharge opening extends diagonally from rounding the inlet opening to the tank or recepthe inner surface portion 8 of the tip 5 at an obtacle being filled from the liquid-supply nozzle.

Furthermore, by providing a or attachment the character described v on a recess ll con" structecl and arranged in the foregoing manner,

I have forced there is distinct tendency for the gasoline or other 3i:

to hecome impounded tendency evldc tendency of the liquid gravitating down the inner surface of the latter to drop freely from the outer edge of said surface portion. 8 and cause said liquid instead to flow smoothly into said retaining recess 6, and it is especially desirable that the juncture between the outer side 8' of the recess and the surface portion ill of the attachment shall provide a sharply angular formation, as this tends to resist the flow of liquid from said recess and materially increases the liquid-retaining capacity thereof.

While a specific embodiment of my tip or attachment has been set forth herein for purposes of description, it is not intended that the inven tion shall be precisely limited to said embodiment, but that changes and modifications may be incorporated in the construction and composition thereof within the scope of the annexed claims I claim:

3.. The combination including a tubular liquid suppiynozzle, an anti-drip member secured to the discharge end thereof, said member having its inner surface interrupted by a liquid-retaining recess the side of which adjoining the discharge end thereof forms with said inner surface an angle not in excess of 90 degrees and the opposite side an angle in excess of 90 degrees with the inner surface, and a protective sleeve secured to the outer surface of the member.

2. The combination including a tubular liqold sup-ply nozzle, a member secured to the discharge end or said nozzle,.said member having a liquid-retaining recess located internally thereof adjacent the discharge end of the nozzle, and a protective sleeve secured to the outer surface of the member, said sleeve being of non-insulating material and contacting said nozzle for the purpose of grounding static electricity to the latter.

The combination including a tubular liquid supply, nozzle, a member secured to the discharge end of said nozzle having its inner surface interrupted by a liquid-retaining recess, said member being composed of resilient material and operable as a buffer to prevent damage to surfaces with which the same may contact, and a protective sleevesecured to the outer surface of the member.

a. The combination including a tubular liquld supply nozzle, a member secured to the discharge end of said nozzle having its inner surfaceinterrupted, by a liquid-retaining recess, said member being composed of resilient material and operable as a buffer to prevent damage to surfaces with which the same may contact, and a protective sleeve secured to the outer surface of the member, said sleeve being of non-insulating material and contacting the surfmc of said tubular nozzle for the purpose of grounding static electricity to the latter.

5. The combination including a tubular liquid supply nozzle, a member of resilient material secured to the discharge end of said nozzle. 

